Adblock Plus - AdBlock Plus is a browser extension for Firefox, Chrome, Opera, and several other popular browsers that prevents intrusive ads like pop-ups and malicious code from appearing on websites you visit.
lofi.cafe - Relax & focus with live lofi stations 🎧
BlockParty - Real-time voice chat rooms from the creators of turntable.fm
Brain.fm - Music designed for the brain to enhance focus, relaxation, meditation, naps and sleep within 10 - 15 minutes of use.
Twitter One Click Block - Add a block button for a simple one click blocking.
Kaizen Flow - kaizen flow is a lo-fi pomodoro timer built for deep workers.